Either one of these books will give you what you are looking for:
- Solar Engineering of thermal processes by Duffie and Beckman
- Solar energy engineering by Soteris Kalogirou
The heat loss is not one simple calculation for solar collector systems.
Hope this helps.
Generally you have to determine the receiver temperature (Tr) and the heat loss coeficient (UL).
Then: Qloss=Ac*UL*(Tr-Tam)
http://www.lth.se/fileadmin/ht/Kurser/MVK160/Project_08/Fabio.pdf
Dear Tamil selvan,
That’s one of the correct equations. That one is for convective heat transfer on the outside surfaces. The value of h will depend on the geometry.
Assuming your components are insulated then Ts should be the temperature of the outside of the insulation. You also need the conductive heat transfer through the insulation. That will be something like this:
Q = k A (T_water - Ts)/t, where t is the thickness of the insulation and k is the thermal conductivity of the insulation.
You will have to iterate the value of Ts for each component until you find the right value to make Q_conduction = Q_convection for that component.
For the front surface of your solar absorber, there will not be any insulation, so for that, use Ts = T_water.
I have seen some simulations in the following link.
I dont know whether it will be useful for you
The details of the simulations served till now.At a glance
1) 3 phase induction motor modeling in simulink environment
Link :https://youtu.be/0sUUGRP1kYU
2)Simulink for measuring solar module efficiency
Link: https://youtu.be/fo2FUls1PC8
3)3 phase harmonic filters modeling in simulink
Link :https://youtu.be/Z5K4xPQ1bas
4)Solar powered water pumping system simulink
Link: https://youtu.be/MDifdomGt_A
5)Simulink model of a breaker incorporated with an inductive circuit
Link:https://youtu.be/xYvZ2ME-RGc
6)Buck dc-dc converter simulation matlab simulink
Link :https://youtu.be/jAMlocnqGWA
7)CUK converter for voltage stabilisation
link: https://youtu.be/a3G7n87HBrE
8)Vehicle to GRID Simulation in Matlab Simulink
Link:https://youtu.be/BIGH1fKAnu4
9)Single phase transformerless grid connected PV array
Link:https://youtu.be/wccKbiJ8QPQ
10) Partial shading effects in solar array
Link:https://youtu.be/5wabt4cGPvs
11)wind generator simulink model
Link :https://youtu.be/IeWTKdQObmw
12)Detailed Model of a 100-kW Grid-Connected PV Array
Link:https://youtu.be/BCzCVCn8UM0
13)Grid connected inverter matlab simulation
Link:https://youtu.be/mKRfJaWSZ7E
14)DC-AC grid interconnection
Link:https://youtu.be/RGEIpbwP3Kk
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